Shoring device



Filed May 12 1925 2 Sheets-Sheer. 1

ZJZWM 1927" E. J. LANGHAM SHORING DEVICE Patented Aug. 16, 1927s I i wmanner a. LANGHAMZ, or Jornvsrown, PENNSYLVANIA.

SHORING DEVICE.

Application filed ma 12, 1925. seriarm. 29,812.

The principal object of this invention is sunk recess 8 being providedat the back to provide a novel and improved shoring of the section forthe correspondingly shaped device including means whereby the devicehead 9 of said bolt. A locking member 10 may be collapsed for removaland re-use at also is provided with a central opening 11 5 a differentpoint. for the bolt 7, and this member preferably Another object of theinvention is to prois no greater in width than the smaller side vide anextremely durable and easily manuof the wedge-shaped intermediate member4, factured shoring device particularly adaptand the member 10'furtheris preferably taed for use in mines for supporting theceilperedoutwardly so that in one position it 10 ing during excavatingoperations, the deconstitutes in effect aprolongation of the vice havingmeans facilitating its removal said wedge 4, as illustrated in Fig. 1.The after the mining operation has been commember 10 further is ofgreater length than pleted for use in further operations width so thatwhen turned so as to lie lonll'n the attached drawings: gitudinally ofthe assembled post, as shown m Figure 1 is a side elevation of a devicein Fig. 1, it overlies the top and bottom made in accordance with myinvention; sections, and thereby, when the nut 12is Fig. 2 is a view inperspective of one of tightened in back of the member, prevents e mainparts of the device; withdrawal of the intermediate section. Fig. 3 is aview in perspective of the in- With this construction, it will beapparent cerrnediate or wedge section; that the bolt 7 also provides, byturning of Fig. 4 is a detached perspective of the the nut 12, forforcing the intermediate bolt or holding means forthe intermediatewedge-shaped member 4 between the outer section, and sections 1 and 3whereby the latter are Fig. 5 is a view in perspective of the bearforcedapart. 25 ing'plate. It is preferable-to tie all the elements of Withreference to the drawings, the device the shoring post together when notin use, comprises a base a. section 1 flanged at the in order that noneof the parts will be missbottom to provide a suitable'base 2 and a ingwhen it is desired to r e-assemble the like top section 3 similarlyflanged atthe shoring post; for this purpose the sections 1 38 top toprovide a suitable extended bearin and 3 are each provided at each oftheir surface at that end. The upper end of the sides with an eye bolt15 and 16 respectivebottom section Land the lower end of the ly, towhich are connected the opposite ends upper section 3 are oppositelyinclined, as of a chain 17. The intermediate section 4 clearlyillustrated, and an intermediate is provided at each side with anelongated r wedge-shaped member 4 is provided for ineye 18 through whichthe chain 17 passes. sertion between the bottom and top sections. Thebolt 7 remains in the intermediate secand adapted to form with saidsections a tion i and the locking element 10 and nut substantiallystraight-sided post having the 12 remain on the bolt'7; thus all theelements aforedesoribed flanges at top and bottom. of the shoring postare retained in a group.

40 As clearly illustrated, both the top and In setting up this device,the small end of 95 lowersections are provided on their inclined theintermediate section 4 is inserted be- 7 "aces with a central .channelor groove 5 of tween the sections 1 and 3, with the locking uniformdepth, said channel extending from member 10 turned horizontally andhaving one side of the section to the other, and its tapered sidescontiguous with the tapered 6, 6-, on the opposite inclined faces of thepositioned adjacent thefront'or narrow edge intermediate section4. Aswill be apparent, thereof when it is inserted between theelethese'coacting tongues and grooves prevent ments 1 and 3, and whenthe member 10 is transverse displacement of the intermediate turned intothe position illustrated in Fig.

section with respect to the others. 1, the nut 12 is turned inwardly onthe belt In order tov secure the wedge-shaped inter- 7 to thereby forcethe intermediate section mediate section 4 in the assembled position,between the others and to spread thel'a'tter.

as shown in the drawings, I provide a. bolt Where the device is employedto shore the 7 which extends completely through the inroof of a minedigging, the flange 2 may rest 55 termediate section 4, a rectangularcounterupon the floor or upon any suitable pedestal no these channels 5form guideways for tongues sides of the section 4, the element 10 being,100,

built up on the floor and the upper end brought to bear against the roofor against beams underlying the roof. The nut 12 is -The wedge-shapedintermediate part may then be easily displaced and the deviceremovedvfor a further operation.

Obviously there may be considerable modification without departure fromthe essential features of the invention.

I claim: I

1. A shoring device comprising upper and lower sections havingoppositely inclined adjacent ends, a substantially wedge-shapedintermediate element adapted for insertion between the upper and lowersections and to form therewith a rigid post, and means ineluding a boltextending through said intermediate section and'supporting a member atthe narrow edge of the latter adapted to be passed between the upper andlower sections when in one position and when turned at right anglesthereto to overlap the said upper and lower sections for detachablyretaining the intermediate section in position between the said upperand lower sections.

2. A shoring device comprising upper and lower sections having theiradjacent faces oppositely inclined, an intermediate substant'a lywedge-shaped section adapted for insertion between the said upper andlower sections to form therewith a rigid post, a

retaining bolt extending through said intermediate section and having atthe narrow side of said section a retaining member whose width is nogreater than the width of the said narrow end of'the intermediatesection when in a position adapted .for passage therewith between saidupper and lower Seutions and whose length'is sufficient to overlap theupper and lower sections when in a position longitudinally of the post,and a nut on the bolt adapted to bear against said member to retain theintermediate section in position between the upper and lower sections.

3. A shoring device comprising upper and lower sections having theiradjacent faces op ositely inclined, an intermediate substantia lywedge-shaped member adapted for insertion between the inclined faces ofthe upper and lower sections to form with the latter a rigid. post, abolt extending through the intermediate section from the small side tothe large and supporting on said small side a member whose maximum widthis no greater than the width of the small side of said wedge-shapedintermediate section, said member being tapered outwardly in conformityto the taper of said wedge-shaped section so as to constitute in effectan extension of the latter for passage therewith between said upper andlower section, and said member also being of suflicient length tooverlap the upper and lower sections when in a position longitudinallyof the device. and a nut on said bolt adapted to bear against the saidmember to retain the intermediate section in position between theothers.

4. A shoring device comprising upper and lower sections having theiradjacent faces op ositely inclined, an intermediate substantia lywedge-shaped member adapted for insertion between the inclined faces ofthe upper and lower sections to form with the latter a rigid post, abolt extending through the intermediate section from the small side tothe large and supporting on said small side a member whose maximum widthis no greater than the width of the small side of said wedge-shapedintermediate section, said member being tapered' outwardly in conformityto the taper of said wedge-shaped section so as to constitute in effectan extension of the latter forpassage therewith between said upper andlower sections, and said member also being of sufficient length tooverlap the upper and lower sections when in a p 'tion longitudinally ofthe device, and a n t on said bolt adapted to bear against th saidmember to retain the intermediate ection in position between the othersnd means for tying all the elements of'the shoring device together whensaidv is not 1n use.

shoring device ERNEST,- J. LANGHAM.

